This document presents an overview of incentive schemes, which are programs designed to encourage higher productivity among workers. It describes several common incentive plans, including straight piece-work, Halsey, Rowan, and Emerson plans. Under these plans, standard times and output quotas are set and workers are paid either their normal hourly wage or a bonus depending on whether they meet or exceed productivity standards within the allotted time frame. The document provides examples of how earnings are calculated under each incentive plan based on different productivity scenarios.